Thiamethoxam Impurity 3 CAS 192439-46-6
| CAS No. | 192439-46-6 |
| Molecular Formula | C14H15N5O3S2 |
| Molecular Weight | 365.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO supplies Thiamethoxam Impurity 3 (CAS 192439-46-6), a pharmacopoeial impurity reference standard (molecular formula C14H15N5O3S2, MW 365.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Thiamethoxam Impurity 3 (C14H15N5O3S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 365.43 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H15N5O3S2 |
| Molecular Weight | 365.43 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Thiamethoxam Standards
Recommended Standards
- Tert-butyl 4-(5-cyano-2-phenylpyrimidin-4-yl)piperazine-1-carboxylate (CAS 1858252-01-3)
- 1-((2-(4-Methoxyphenyl)imidazo[1,2-a]pyridin-3-yl)methyl)piperidine-4-carboxylic acid (CAS 727977-49-3)
- tert-butyl 5-(pyrrolidine-1-carbonyl)imidazo[1,5-a]quinoline-3-carboxylate (CAS 170568-35-1)
- 1-(4-(3-Phenyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-yl)piperazin-1-yl)pentan-1-one (CAS 920217-83-0)
- Atracurium Impurity 82 (CAS 1075726-70-3)
- Carteolol Hydrochloride EP Impurity B (CAS 30389-33-4)
- Ceritinib Impurity 17 (CAS CATO-C4X-104817)
- 1-(5-Ethoxy-1-methyl-4-nitro-1H-pyrrol-2-yl)ethanone (CAS 199684-11-2)
- N-(3-(Prop-2-yn-1-yl)naphtho[2,1-d]thiazol-2(3H)-ylidene)propionamide (CAS 868674-38-8)
- 2-Amino-5-bromo-N-isopropylnicotinamide (CAS 1247477-70-8)
- 3-(Benzyl(ethyl)amino)-1,1,1-trifluoropropan-2-ol (CAS 1410613-84-1)
- 3,6-Dichloro-9-[(oxiran-2-yl)methyl]-9h-carbazole (CAS 65679-71-2)
- 1-(4-Fluorophenyl)-3-(pyridin-3-yl)-1H-pyrazole-4-carbaldehyde (CAS 618101-63-6)
- Compstatin control peptide (CAS 301544-78-5)
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